Determining the Gamma-Ray Burst Rate as a Function of Redshift
Abstract
We exploit the 14 gamma-ray bursts (GRBs) with known redshifts z and the 7 GRBs for which there are constraints on z to determine the GRB rate RGRB(z), using a method based on Bayesian inference. We find that, despite the qualitative differences between the observed GRB rate and estimates of the SFR in the universe, current data are consistent with RGRB(z) being proportional to the SFR.
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